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. 2023 Jan 10;13:1045783. doi: 10.3389/fphar.2022.1045783

TABLE 1.

Classification of uterine fibroids by FIGO.

Classification of uterine fibroids by anatomical positioning
FIGO Subtype Positioning
0 Submucosal - Subtype 0 100% endometrial cavity or intracavity
1 Submucosal - Subtype 1 > 50% intramural
2 Submucosal - Subtype 2 < 50% intramural
3 Intramural In contact with the endometrium
4 Intramural 100% intramural
5 Intramural Subserosal >50% intramural
6 Subserosal Subserosal <50%
7 Subserosal Pedunculated